The easiest way to find a common denominator of two numbers is to multiply them. Therefore, one of the common denominators for 6 and 7 would be 42 (7 x 6). This method will not necessarily produce the lowest common denominator, but it will determine one. For example, multiplying 4 and 6 will give you 24 as a common denominator. However, the lowest common denominator for 4 and 6 is 12.
Oh, dude, the common denominator for 6 and 7 is 42. Just kidding! The common denominator for 6 and 7 is actually 42. So, like, if you're adding or subtracting fractions with 6 and 7, you'd use 42 as the denominator to make your life easier.
A common denominator is 7.A common denominator is 7.A common denominator is 7.A common denominator is 7.
42
210
It is 42
126
210
84
84
It is 210
It is: 42
7 x 6 x 5 = 210